+1.relative_identifier(
  -2,
  key: not 3
)
+1.relative_identifier(
  -2,
  key: not 3
)(
  !4,
  key: ^5
)
+1.relative_identifier key: -2
+1.relative_identifier unqualified -2,
                                   key: not 3
+1.relative_identifier -2,
                       key: not 3